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187251 (2005 ST225)
Classification: Main-belt Asteroid          SPK-ID: 2187251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09510786515546857 7.216e-08  
a 3.153523809720438 3.9364e-08 au
q 2.853598892460987 2.2466e-07 au
i 2.144084999199418 9.0965e-06 deg
node 195.3902666023932 0.0001583 deg
peri 219.190098768254 0.00016612 deg
M 219.1637417403717 5.4273e-05 deg
tp 2460000.711108298397
(2023-Feb-25.21110830)
0.00031916 TDB
period 2045.467570264196
5.60
3.8299e-05
1.049e-07
d
yr
n .1759988792946259 3.2954e-09 deg/d
Q 3.453448726979889 4.3108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      8919 days (24.42 yr)  
   first obs. used      1995-12-18  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:37  

Additional Information
 Earth MOID = 1.86458 au 
 Jupiter MOID = 1.86381 au 
 T_jup = 3.199 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.56   n/a E2021B55  

187251 (2005 ST225)          Discovered 2005-Sep-30 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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